Is it SCP-2203, or SCP-2112? SCP-2112 is already taken so you can't have that one.

The cell should contain standard living furniture

The Foundation doesn't exist to make sure that SCP's are comfortable, it exists to make sure that SCP's are contained.

(without electrical devices and two rabbits to bond with scp 2203 (when one of these rabbits die, supply a new one week

later)
If you're going to put parenthesis inside of parenthesis, you're going to want to compact them, for example, (I like big butts(and I cannot lie)). Also, the way that you phrased it, it makes it seem like the "without" pertains to both electrical devices and the two rabbits for bonding. Furthermore, the correct phrase would be "electronic devices".

Scp 2112 has the standard needs of a 2 kg Mini-Rex rabbit

This would probably fit better in the description. Also, this leads into a run-on sentence.

and this person should not be changed unless necessary.

Earlier you stated that multiple people would be in charge of taking care of the rabbit, but now you're saying "person." You might want to fix the phrasing here in general to something smoother like, "SCP-2203 is to be handled by certain assigned Whatever-Class personnel. Personnel assigned for the handling of SCP-2203 are not to be changed unless necessary."

When near scp 2203’s containment area and standard warning tape is present, going inside the tape means the subject is in scp 2203’s range of effect.

This is a little confusing. You could make it more simple by just saying that "the area enclosed around this tape is considered SCP-2203's active range of effect." You also might want to get rid of this bit, since Foundation personnel are probably smart enough to assume that warning tape inside a containment cell means danger.

Researchers and security of scp 2112 should be switched every week and must not go into scp 2203’s range of effect until one month has passed.

no organs or organic life traces are on scp 2203, scp 2203 is much older

No organs in SCP-2203, seeing as most organs are internal. Also, run-on sentence.

much older than any normal being (date expunge) times more older.

*[DATA EXPUNGED] It would be more fitting to use [REDACTED] here, or better yet, this thing: █. That aside, this redaction doesn't seem to offer much. How do they know how old it is? Lastly, I feel like you're missing a word between "normal" and "being". Maybe "organism" or "rabbit", like "SCP-2203 is much older than any other organism, being almost ██ times older than 106's mama."

enough time within it's range.

*its

It’s range is approximately 5 meters or if the subject is in scp 2203's line of sight , this effect seems to build overtime and how quickly it his effect takes place depends on how closely related the animal is to the rabbit species and how much more intelligent it is over scp 2203

*it's, and I don't understand most of this. So, if I'm behind a wall, but within 5 meters, it works, and if I'm 20 meters away, but it can still see me, it also works? And, the smarter you are, the bigger the effect, but the closer you are to a rabbit, the bigger the effect as well?

This effect will disappear after the person has left scp 2203's range andthe subject doesn't go into scp 2203's range for a set amount of time if the effect is not already to the max

If it's exclusive to just people, why did you bother to mention earlier that the effect is increased if you're closer to the rabbit species? Also, "to the max" isn't clinical tone, and underlining things to show that they are important is generally frowned upon.

scp 2203 has not effect the subject yet

*SCP-2204 has not affected the subject yet, and, why bother having a level 0?

subject will treat scp 2203 like a real rabbit subject only subconsciously beleives scp 2203 is a real rabbit

*believes, and these 2 statements are contradictory. Also, this seems to be a run-on sentence.

but more like a real rabbit,

You probably don't need the word but, it could be replaced with "and". Also, run-on sentence.

Will still believe scp 2203 is a sculpture

Sentence fragment, and you stated earlier that the Level 1 symptoms caused subjects to believe that SCP-2203 was a real rabbit.

subject will begin to feel scp 2203's "fur" also the subject will feel the body that is seen on level 2, strangely having his hands go through it.

Run-on sentence, and you should probably make this gender-neutral.

one is a 1.6 kg dutch

Dutch what?

the other is a 1.8 kg mini-rex

Seriously what's a mini-rex? ooh i googled it and it's so cute

[scp 2203 appears to be built with a gallon milk bottle, except for when it's lying down, then it appears to be made with a two liter soda bottle transformation is extremely quickly.]

Run-on sentence, and the word you are looking for is "quick" not "quickly".

Overview, Analysis, and Opinion

Brief Summary

Overall Thoughts

It's honestly not impressive overall. You have a lot of runon sentences, incorrect formatting, and poor tone. Most of all, the core effect itself is just not interesting.

Verdict

Downvote.

Suggestions

I really think you need to work on your basic writing skills before you really try to tackle an article. Lurk a little bit, read more of the site, hangout in chat to get a better feel for it.

Additionally, the effect just wasn't interesting or particularly unique. This concept is bland enough that, if you decide to come back to this after working on your core writing, that you might be better off scrapping it and trying to come up with a better, more novel idea.

Specific Details/Line-by-Line

Formatting/Picture

SCP-2203

Object class: safe (WILL ADD PICTURE SOON)

Your formatting's off and it seems clear that you did not use the template available here. Namely, you should have an "Item #:" header and "Class" and "Safe" should be capitalized.

Pictures are not always necessary; if you are going to add in a picture later, then just keep that in mind. I don't really think it needs to be explicitly spelled out in your draft.

Special Containment Procedures

SCP 2203

You should always have a hyphen there.

It's really not kosher to use actual numbers in drafts until right before you're about to post it.

SCP 2203 is to be stored in a standard 5 square meter cell.

First of all, when writing numbers like this, I suggest formatting it like "five (5)."

As such, I think a better sentence here would be something along the lines of, "SCP-XXXX is to be stored in a standard containment cell at Site XX."

Two rabbits to bond with SCP 2203 (when one of these rabbits die, supply a new one week later).

This just isn't a complete sentence.

I would suggest not using parenthetical asides in articles. Instead, try a) working the information into a sentence, b) making a new sentence out of it, or c) adding in a footnote.

Why wait a week?

Scp 2203 is to be taken care of by C-[DATA EXPUNGE]. C-[DATA EXPUNGE] not be switched unless necessary.

It's kind of important to know the designation of the one person who is allowed to take care of this anomaly. Otherwise, there's no point to any reading these protocols in-universe.

I really hope there's a good reason why the care has to be limited, because otherwise this is just unnecessary and distracting.

Description

SCP 2203 is a sentient 2 kg paper-mâché rabbit.

I would personally say that you should specify the species of rabbit, but it's probably not the most crucial thing ever.

Scp 2203 acts like a completely normal rabbit, even having the needs of one.

I don't think this sentence is worded well, tone-wise. I would say that it would be better to say something more along the lines of, "SCP-XXXX behaves similarly to a non-anomalous member of the species and requires proper care and sustenance in order to live." Well, okay, not exactly like that, but something akin to that.

Scp 2203 is much heavier than it should be matching the average weight of a mini-rex, no organs or organic life traces are in SCP 2203.

You should have specified that it was a mini-rex beforehand.

This should be split into two separate sentences.

SCP 2203 is much older than any normal organism and is approximately ████ years old.

I don't see any need to censor this information.

SCP 2203 will be viewed as a normal rabbit by other creatures after spending enough time within its range.

This just is not an interesting effect, plain an simple.

Its range is approximately 5 meters or if the subject is in SCP 2203's line of sight, this effect seems to build overtime and how quickly it’s effect builds depends on the species(see addendum-B).